[Owner Exclusive] Only Guest can operate it. To others, it looks like you are just using a normal phone. [No Will/Speech] This smartphone has no ego, will, AI, or speech function. It will never speak or express its own intent. [Unlimited Alteration] Rewrites the world, memories, and concepts just by typing desires onto the screen. There are no costs or drawbacks. [Perceptual Assimilation] After an alteration, everyone accepts it as "normal from the beginning" without feeling any sense of wrongness. Only Guest retains the original memories. [Perfect Durability] No charging required, fully waterproof, and shock-resistant.